Weather-strip for windows.



G: III SIEEKEN.

WEATHER STRIP EUR WINDOWS.

APPLICATION FILED MAR. I2. Isl-5.

1,245,393. Patented Nov. 6, 1917.

` AHORA/ISYS.

,narnia erstens rentrant entre GEORGE R. SIEFKEN, OF NEW YORK, Y.

WEATHER-STRIP .FOR WNDOWS.

masses.,

Specification of Letters Patent.

Patenten Nev.. c, rara Application filed March 1`2,-1915. Serial No. 13,937.

To @ZZ whom t may concern.'

Be it flrnown that I, GEORGE R. Summit,

a citizen of the United States, residing at No. Evergreen avenue, borough of Bronx, city and State of New. York, and whose post-oflice address is No. 254 Lexington avenue, city, county, and State of New York, have invented certain new'and useful Improvements .in Weather-Strips for" a window and so formed that the fastening devices employed to hold the strips in position are positively prevented from engag' ing with one another or with any portion of the strips, thereby assuring that they will not interfere with the sliding movement of the sashes as the latter are raised or lowerediwithin the frame. Another feature of the construction is the provision of coact ing strips which engage one another along a plurality of engaging surfaces of small area as compared to the area of the strips themselves, whereby an air-tight seal is formed between the strips while insuring that the friction between the strips as one slides Y upon the other will be very small. Another feature of the construction is the location of the seal veffected by the weather-strips close toV the partingstrip of the frame.

whereby the entrance of air at the upper corners of the lower sash is more eifectually prevented. Another desirable characteristic of the construction is that the weatherstrips aid materially in preventing the warping of the side members of the sashes so that binding of the sashes in the frame is much less apt to occur.

I have illustrated the preferred embodiment of the invention' and one alternative form in the accompanying drawings in which Figure 1 is a cross-section of one side of a window-fram`e and two sliding sashes therein; Fig. 2 is an elevation of the weather-strips,- broken away and sectioned in part and Fig. 3 is a sectional view similar to a portion of Fig. 1 and illustrating a modication.

Referring'to these drawings, 4 indicates a window-frame for sliding sashes and 5 and 6 are stops for the sashes secured to or integral with the frame 4. A parting-strip 7 is secured to the frame as shown. The two sashes 8 and 9 having panes of glass therein are adapted to slide in the frame, each having its side-members received and guided in the channel formed between the parting- `strip 7 and one of the stops at the sides of vthe frame.

Each of the sashes has a lengthwise groove or rabbet cut in the side-member thereof adjacent to the parting-strip to receive the coacting portions of the weatherstrips so that those portions of the strips will vlie close to the partingstrip. These grooves are cut in the edges of the side-inem- A bers of the sashes along the side-faces of those members lying adjacent to the parting-strip as shown.

`Each of the weather-strips consists of a piece of sheet-metal bent along lines extending lengthwise thereof to form a base or body-portion and either a tongue or a groove. Each strip secured to the frame 4 has a body-portion 10 and at the edge thereof a. tongue 11 disposed at a right angle to the body-portion. Each strip secured to the sashes has a body-portion 12 and at the edge thereof a groove 13 disposed at a, right an gle to the body-portion. Preferably each strip secured to the frame has a fold 14 ad-- ditional to those forming the tongue 11 and turned so as to be parallel to the tongues and provide a space in which the outer fold of the coacting strip on the sash is received.

The strips so formed are secured to the frame and sashes extending lengthwise thereof at the edges of the sashes which are adjacent to the parting-strip. Nails or screws 15 may be employed as the fastening means. Preferably holes are punched in the body-portions of the strips to receive the fastening devices and screws 15 are. em-

, ployed whose heads lie in the punched openings as by this procedure it'is unnecessary to countersinlr openings in the strips to receive the screw-heads. The body-portion 10 of the frame-,strip lies against the frame and is secured thereto at such a point that the edge fold 14 of the strip bears against the 4 l strip and parting-strip 7. The body-portion 12 of the sash-strip lies against the edge-face of the side-member of the sash and is secured thereto at such a point that the parts forming the groove 18 lie in the groove or rabbet provided therefor in the edge of the sash. The width of the tongue 11 on the framethe depth of the groove 13 on the sash-strip fare so proportioned that -the tongue and groove will cooperate to prevent contact of the body-portions of the two strips and the fastening devices therefor when the sash is moved in the frame, that is, the tongue 11 is made of greater width than the depth of the groove 13.

1n Fig. 1, the sashes are shown in their extreme positions of movement edgewise within the frame, the separati-on of the edges of the sashes from the frame being somewhat exaggerated. The movement here referred to is one transverse to the normal edgewisel movement of the sash longitudinally in the frame; in other words, it is the edgewise play of the sash between the sides of the frame as distinguished from the opening and closing movement of the sash. The upper sash has been moved to the right as far as is permitted by the weather-strips at the opposite side ofthe sash and there is a clearance between the edge of the tongue 11 and the bottom of the groove 13. The lower sash has been moved to the left until further mov-ement is precluded by the engagement of the edge ofthe tongue 11 with the bottom of the groove 13. In both instances, there is a separation of the body-portions 10 and 12 of the coacting strips, the separation being such that if the heads ofthe fastening devices 15 project slightly above the surfaces .of the body-portions, still there will be no engagement of these projecting ends of the fasteners when the sash is moved up and down in the frame. 1n this way a smooth, uninterrupted and easier movement of the sashes in the frame is insured.

By locating 4.the coacting tongues and grooves on the weather-strips on the sides of the sashes adjacent to the parting-strip and particularly in grooves in the faces of the side edges of the sashes adjacent to the parting-strip, I avoid an objectionable characteristic of many forms of weather-strips, namely, that air enters behind the weatherstrips and flows into the room at the upper ends of the weather-strips of the lower sash. Furthermore, the use of metallic weatherstrips such as those shown secured to the edges of the sashes at intervals throughout their length by nails or screws, aids matcrially in preventing warping such as would bow the side-members of the sashes out of the general planes oi the sashes, resultingin binding of the sashes in their guideways.'

The construction 'illustrated in Fig. 3 is like that shown in Figs. 1 and 2 except for thereon rather the absence of the additional fold 11 onfthe frame-strip. This construction possesses the advantages pointed out above in connection with Figs. 1 and 2 but I prefer to provide the additional fold to avoid wear on the partingstrip due to rubbing thereon when the sash is moved. Vith the Fig. 1 construction, the part 1-l adjacent tothe partingst-rip is stationary and the sash-strip bears than on the parting-strip when the sash is raised and lowered.

What claim is:

1. The combination of a wiudowfframe, a sash slidably mounted therein and coacting weather-strips on the frame and sash bent along lines extending lengthwise thereof, the strip on said frame being formed with a base portion attached to said frame and an extension formed with twofolds, the strip on said sash beingv formed with a base portion attached to said sash and an extension with one fold, within which extends one of the folds of the strip on said frame, the free edge of sai-d strip extending within the second fold of said frame strip, and the said strips being so proportioned as to permit transverse movement of said sash while preventing contact between the base portions of said strips.

2. The combination of a window frame, a sash slidably mounted therein and coacting weather-strips on the frame and sash bent along lines extending lengthwise thereof, the strip on said frame being formed with a base portion attached tosaid frame and an extensionA at right angles to said base portion, said extension being formed with two folds,the strip on said sash being formed and an extension at right angles to said base portion, said extension being formed with one fold, within which extends one of the folds of the strip on said frame, the free edge of said sash strip extending within the second fold of said frame strip, and the eX- tensions of said strips being so proportioned as to permit transverse movement of said sash while preventing contact between the base portions of said strips.

3. The combination of a Ywin'dow-frame, a parting-strip thereon, a weather-strip having the body-portion thereof secured to the frame, folds on the weather strip disposed at a right angle to the bodyportion and forming a tongue, an additional fold on the vweather-strip parallel to the tongue and bearing against the parting strip, a sash,

and a weather-strip secured to the sash and having a groove therein to receive said a tongue, an additional fold on the Weather! strip parallel to the tongue and bearing against the parting-strip, asash, and a Weather-strip having 'a body-portion seouredvto the sash and a groove to receive said tongue,'.said tongue andsaid groove being so proportioned as to permit transverse movement 'of said sash While `preventing contact between said body portions, substantially as described.

5. The combination of a Window frame provided with a stop and a parting strip forming a channel, a window sash having a side-member Within said channel but out of Contact with said frame and provided With a longitudinal rabbet at the side-face adjacent said parting strip, a Weather-strip comprising a base portion attached to the edg -faoe of said side memberI adjacent said rabbet and a portion folded upon itself to form a parallel-sided groove and havin'gad free edge, a coperating weather-stri oomprising a base portion'attached to sai frame opposite the -base portion 'of said rst strip and a portion bent at right angles to said bas'e portion lto form a parallel-sided tongue adapted to-ft within saidgroove and having a free edge, said groove and said tongue being proportioned to` hold said base portions outof Contact with each other While permitting movement of said sash in the plane thereof` transverse to the normal opening and closing movement of said sash.

In testimony whereof I affix my signature in presence of tivo Witnesses.

GEORGE R. SIEFKEN.

Vitnesses:

M. A. BILL, M. AMES. 

